Mount Baigong in China has a long sequence of pipe-like structures that were probably made by some advanced extraterrestrial beings. These pipes date back to a time when human beings did not have the technology to make such pipes. People in the surrounding areas say they have been there for centuries and they are sure that aliens built them. Adding to the mystery is a perfectly symmetrical pyramid at the summit of the mountain and three caves at its base with more pipes protruding from the ground. Though a recent study says they could be fossilized trees yet no one knows why they have so much iron in them.
Baigong Pipes
